Products testing, sample welding, cutting on site convince yourself of our Equipped with a W21.8x1/14inch thread, the pressure regulator is universally applicable and fit most common bottles Thanks to the workmanship make of brass and the construction The pressure regulator is perfectly suited for the removal of compressing technical in all inert welding processes The bottle pressure regulator is extremely sturdy, and can withstands the highest loads, Manufacturer: BULAIDAI